The following is a list of works that contain practical techniques for koi breeding: 1." Techniques of Raising Koi Carps " 2. Koi Fish Breeding Guide. 3." Koi Fish Breeding Guide to Getting Rich " 4. Koi Fish Breeding Technique Manual. 5." An Introduction to Koi Fish Cultivation " 6 " Koi Fish Cultivation Practice " 7 " Koi Fish Breeding Diary " 8 " Koi Fish Cultivation Method " 9 " Koi Fish Breeding Guide " 10 " Koi Fish Breeding Techniques "-